Fruit juice extractor



May 12, 1942. o. E. KUHLMAN rrm. 2,233,119

FRUIT JUICE EXTRACTOR Original Filed Jan. 29, 1940 Patented May 12, 1942FRUIT JUICE EXTRACTOR Orville E. Kuhlman and Joseph M. Majewski, Jr.,Kansas City, Mo., assignors to Foster L. Talge, operating as RivalManufacturing Company,

Kansas City, Mo.

Original application January 29, 1940, Serial No. 316,156. Divided andthis application January 8, 1941, Serial No. 373,624

1 Claim.

Our invention relates to fruit juice extractors and more particularly toa novel strainer to be used in connection with fruit juice extractorsfor the squeezing of oranges, lemons, grapefruit, and the like.

This application is a divisional application of our co-pending case,Serial No. 316,156, filed January 29, 1940.

Most fruit juice extractors of the prior art are provided with strainerswhich permit a certain amount of pulp to pass through the straineropenings. For adult persons, this does not constitute a majordisadvantage and, as a matter of fact, is frequently desirable. Orangejuice, however, for example, is often prescribed for infants and is fedto them through bottles, equipped with nipples. The presence of pulpoften clogs the openings of the nipple in the bottle.

In the pressure type of fruit juice extractors, when the upper pressingmember is lifted, the lower pressing member will likewise lift at times,due to suction, and permit large pieces of pulp to pass into the fruitjuice.

One object of our invention is to provide a novel juice extractor inwhich the extracted juice may be obtained having considerable pulp, amodicum of pulp, or substantially no pulp, at the will of the operator.

Another object of our invention is to provide a novel fruit juiceextractor having an adjustable strainer.

Other and further objects of our invention will appear from thefollowing description.

In the accompanying drawing which forms part of the instantspecification and is to be read in conjunction therewith and in whichlike reference numerals are used to indicate like parts in the variousviews;

Figure 1 is a sectional view of a strainer for a fruit juice extractor,with the fruit juice extractor in which the strainer is used shown indotted lines.

Figure 2 is a fragmentary sectional view, taken on the line 2-2 ofFigure 1.

Figure 3 is a perspective view of a portion of the strainer assembly.

Figure 4 is a perspective view showing the juice receiving cup andanother portion of the strainer assembly.

Figure 5 is a top plan view of a juice receiving cup and strainerassembly showing another embodiment of our invention.

Figure 6 'is a sectional view taken on the line 6-6 of Figure 5.

the strainer assembly of the form shown in Figure 5.

Figure 8 is a perspective view of the fruit juice receiving member and aportion of the strainer assembly, with the element shown in Figure '7removed.

Referring now to the drawing and more particularly to Figure l, a fruitjuice receiving cup I is supported in any suitable manner in a fruitjuice extractor 2. The bottom of the cup is formed with a sump 3provided with a juice draining opening 4 and a plurality of spaced ribs5. An adjustable strainer member 6 is provided with a plurality ofslotted openings 1, as can readily be seen by reference to Figures 2 and3. The cup I is formed with a plurality of reentrant portions 8, marked1, 2, and 3, respectively. The strainer portion 6 is provided with a fin9, having a projection in adapted to be seated in one of the reentrantportions 8. The width of the slots 1 is exactly equal to the width ofthe projections 5 so that, when the slots are opposite the projections,the projections will seal the slots permitting no juice to pass, itbeing understood, of course, that the strainer member 6 fits closely inthe sump upon the projections 5, as can readily be seen by reference toFigure 2.

The positions of the reentrant portions 20 are.

such that, when the projection is in the reentrant portion marked 1, theslots 1 are directly opposite the spaces between projections 5.

This permits all of the juice which passes through the strainer openingsof the primary fruit juice strainer to pass into the sump and out of thedrain openings 4.

When the projection I0 is in the reentrant portion 8 marked 2, abouthalf of each slot 1 is blanked off by the corresponding projections 5.The straining openings of the adjustable strainer are thus reduced,permitting only the finest pulp to go through. This is sometimesdesirable, for those who do not like coarse pulp, such as for invalids.

When the projection I0 is in the reentrant portion 8 marked 3 theposition of the parts is that shown in Figure 2, that is, the slots 1are almost completely blanked off by the projections 5, leaving onlyvery slight openings through which substantially no pulp passes. thuspermitting only the juice to drain oil.

In the form of the invention shown in Figures l, 2, 3, and 4, the sumpis provided with substantially vertical side walls and substantiallyvertical projections 5.

In the form of the invention shown in Figures 5, 6, 7, and 8 inclusive,the fruit juice receiving cup I is not made of metal but a suitableplastic material, and the sump 3 is provided with tapered side walls offrusto-conical shape. The projections 5 are formed, of course, on theinternal side walls of the sump and the strainer takes the form shown inFigure 7. It is provided with a central projection ll, adapted to adjustthe strainer to its different positions. The projection I0 is formedaround the flange l2 of the strai'ner 8. The slots 1 are formed asbefore and the action is identical with that described.

It will be seen that we have accomplished the objects of our invention.We have provided a novel fruit juice extractor in which the quality ofthe juice, with respect to the amount and character of the pulp, may begoverned to meet the tastes of the user. Mothers may use our fruit juiceextractor strainer to produce a strained juice which may be put inbabies bottles and fed to infants through nipples without the annoyanceof having the nipples become clogged. The strainer may be easilydisassembled for cleaning.

It will be understood that certain features and sub-combinations are ofutility and may be employed without reference to other features andsub-combinations. This is contemplated by and is within the scope of ourclaim. It is further obvious that various changes may be made in detailswithin the scope of .our claim without departing from'the spirit of ourinvention. It is, therefore, to be understood that our invention is notto be limited to the specific details shown and described.

Having thus described our invention, we claim:

In a juice extractor, a juice receiving cup formed with a sump,projections in said sump, a cup-shaped strainer positioned in said sump,said strainer being formed with slots and means for moving said strainerto predetermined positions, the said projections being arranged to closea predetermined portion of the slots in each of the said positions tovary the effective openings of said slots.

JOSEPH M. MAJEWSKI, JR. ORVILLE E. KUHLMAN.

